Much is written about using Twitter for research, but what about using it in learning and teaching? It has plenty of applications there as well. 

This workshop presentation (containing a link to the handout) covers what Twitter is, why it's useful, debunks some Twitter myths, and illustrates ideas for Twitter use in modules, lectures and lab-sessions, using current examples from academics. It also covers embedding a Twitter stream in a Blackboard VLE. 

Via Anthony Beal